diff options
Diffstat (limited to 'engines/kyra/items_lol.cpp')
| -rw-r--r-- | engines/kyra/items_lol.cpp | 200 |
1 files changed, 186 insertions, 14 deletions
diff --git a/engines/kyra/items_lol.cpp b/engines/kyra/items_lol.cpp index 3918d21dfb..06667023ad 100644 --- a/engines/kyra/items_lol.cpp +++ b/engines/kyra/items_lol.cpp @@ -229,7 +229,7 @@ ItemInPlay *LoLEngine::findObject(uint16 index) { return &_itemsInPlay[index]; } -void LoLEngine::runItemScript(int charNum, int item, int reg0, int reg3, int reg4) { +void LoLEngine::runItemScript(int charNum, int item, int sub, int next, int reg4) { EMCState scriptState; memset(&scriptState, 0, sizeof(EMCState)); @@ -240,14 +240,18 @@ void LoLEngine::runItemScript(int charNum, int item, int reg0, int reg3, int reg _emc->init(&scriptState, &_itemScript); _emc->start(&scriptState, func); - scriptState.regs[0] = reg0; + scriptState.regs[0] = sub; scriptState.regs[1] = charNum; scriptState.regs[2] = item; - scriptState.regs[3] = reg3; + scriptState.regs[3] = next; scriptState.regs[4] = reg4; - while (_emc->isValid(&scriptState)) - _emc->run(&scriptState); + if (_emc->isValid(&scriptState)) { + if (*(scriptState.ip - 1) & sub) { + while (_emc->isValid(&scriptState)) + _emc->run(&scriptState); + } + } } void LoLEngine::setHandItem(uint16 itemIndex) { @@ -269,8 +273,8 @@ void LoLEngine::setHandItem(uint16 itemIndex) { _screen->setMouseCursor(mouseOffs, mouseOffs, getItemIconShapePtr(itemIndex)); } -void LoLEngine::dropItem(int item, uint16 x, uint16 y, int a, int b) { - if (!a) { +void LoLEngine::setItemPosition(int item, uint16 x, uint16 y, int flyingHeight, int b) { + if (!flyingHeight) { x = (x & 0xffc0) | 0x40; y = (y & 0xffc0) | 0x40; } @@ -279,7 +283,7 @@ void LoLEngine::dropItem(int item, uint16 x, uint16 y, int a, int b) { _itemsInPlay[item].x = x; _itemsInPlay[item].y = y; _itemsInPlay[item].blockPropertyIndex = block; - _itemsInPlay[item].unk4 = a; + _itemsInPlay[item].flyingHeight = flyingHeight; if (b) _itemsInPlay[item].shpCurFrame_flg |= 0x4000; @@ -296,18 +300,186 @@ void LoLEngine::dropItem(int item, uint16 x, uint16 y, int a, int b) { checkSceneUpdateNeed(block); } -bool LoLEngine::throwItem(int a, int item, int x, int y, int b, int direction, int c, int charNum, int d) { - return true; -} - void LoLEngine::pickupItem(int item, int block) { - removeAssignedItemFromBlock(&_levelBlockProperties[block].assignedObjects, item); - removeDrawObjectFromBlock(&_levelBlockProperties[block].drawObjects, item); + removeAssignedObjectFromBlock(&_levelBlockProperties[block], item); + removeDrawObjectFromBlock(&_levelBlockProperties[block], item); runLevelScriptCustom(block, 0x100, -1, item, 0, 0); _itemsInPlay[item].blockPropertyIndex = 0; _itemsInPlay[item].level = 0; } +bool LoLEngine::throwItem(int a, int item, int x, int y, int flyingHeight, int direction, int, int charNum, int c) { + int sp = checkDrawObjectSpace(_partyPosX, _partyPosX, x, y); + FlyingObject *t = _flyingItems; + int slot = -1; + int i = 0; + + for (; i < 8; i++) { + if (!t->enable) { + sp = -1; + break; + } + + int csp = checkDrawObjectSpace(_partyPosX, _partyPosX, t->x, t->y); + if (csp > sp){ + sp = csp; + slot = i; + } + t++; + } + + if (sp != -1 && slot != -1) { + i = slot; + + t = &_flyingItems[i]; + endObjectFlight(t, x, y, 8); + } + + if (i == 8) + return false; + + t->enable = 1; + t->a = a; + t->item = item; + t->x = x; + t->y = y; + t->flyingHeight = flyingHeight; + t->direction = direction; + t->distance = 255; + t->charNum = charNum; + t->flags = 7; + t->wallFlags = 2; + t->c = c; + + if (charNum != -1) { + if (charNum & 0x8000) { + t->flags &= 0xfd; + } else { + t->flags &= 0xfb; + increaseExperience(charNum, 1, 2); + } + } + + updateObjectFlightPosition(t); + + return true; +} + +void LoLEngine::endObjectFlight(FlyingObject *t, int x, int y, int objectOnNextBlock) { + int cx = x; + int cy = y; + uint16 block = calcBlockIndex(t->x, t->y); + removeAssignedObjectFromBlock(&_levelBlockProperties[block], t->item); + removeDrawObjectFromBlock(&_levelBlockProperties[block], t->item); + + if (objectOnNextBlock == 1) { + cx = t->x; + cy = t->y; + } + + if (t->a == 0 || t->a == 1) { + objectFlightProcessHits(t, cx, cy, objectOnNextBlock); + t->x = (cx & 0xffc0) | 0x40; + t->y = (cy & 0xffc0) | 0x40; + t->flyingHeight = 0; + updateObjectFlightPosition(t); + } + + t->enable = 0; +} + +void LoLEngine::processObjectFlight(FlyingObject *t, int x, int y) { + int bl = calcBlockIndex(t->x, t->y); + LevelBlockProperty *l = &_levelBlockProperties[bl]; + removeAssignedObjectFromBlock(l, t->item); + removeDrawObjectFromBlock(l, t->item); + t->x = x; + t->y = y; + updateObjectFlightPosition(t); + checkSceneUpdateNeed(bl); +} + +void LoLEngine::updateObjectFlightPosition(FlyingObject *t) { + if (t->a == 0) { + setItemPosition(t->item, t->x, t->y, t->flyingHeight, (t->flyingHeight == 0) ? 1 : 0); + } else if (t->a == 1) { + if (t->flyingHeight == 0) { + deleteItem(t->item); + checkSceneUpdateNeed(calcBlockIndex(t->x, t->y)); + } else { + setItemPosition(t->item, t->x, t->y, t->flyingHeight, 0); + } + } +} + +void LoLEngine::objectFlightProcessHits(FlyingObject *t, int x, int y, int objectOnNextBlock) { + int r = 0; + + if (objectOnNextBlock == 1) { + runLevelScriptCustom(calcNewBlockPosition(_itemsInPlay[t->item].blockPropertyIndex, t->direction >> 1), 0x8000, -1, t->item, 0, 0); + return; + + } else if (objectOnNextBlock == 2) { + if (_itemProperties[_itemsInPlay[t->item].itemPropertyIndex].flags & 0x4000) { + int o = _levelBlockProperties[_itemsInPlay[t->item].blockPropertyIndex].assignedObjects; + + while (o & 0x8000) { + ItemInPlay *i = findObject(o); + o = i->nextAssignedObject; + runItemScript(t->charNum, t->item, 0x8000, o, 0); + } + + return; + + } else { + r = flyingObjectHitMonsters(x, y); + } + + } else if (objectOnNextBlock == 4) { + _unkDrawLevelBool = true; + if (_itemProperties[_itemsInPlay[t->item].itemPropertyIndex].flags & 0x4000) { + for (int i = 0; i < 4; i++) { + if (_characters[i].flags & 1) + runItemScript(t->charNum, t->item, 0x8000, i, 0); + } + return; + + } else { + r = flyingObjectHitParty(x, y); + } + } + + runItemScript(t->charNum, t->item, 0x8000, r, 0); +} + +uint16 LoLEngine::flyingObjectHitMonsters(int x, int y) { + //////////// + // TODO + return 0; +} + +uint16 LoLEngine::flyingObjectHitParty(int x, int y) { + //////////// + // TODO + return 0; +} + +void LoLEngine::updateFlyingObjects(FlyingObject *t) { + int x = 0; + int y = 0; + getNextStepCoords(t->x, t->y, x, y, t->direction); + int objectOnNextBlock = checkBlockBeforeObjectPlacement(x, y, _itemProperties[_itemsInPlay[t->item].itemPropertyIndex].flags & 0x4000 ? 256 : 63, t->flags, t->wallFlags); + if (objectOnNextBlock) { + endObjectFlight(t, x, y, objectOnNextBlock); + } else { + if (--t->distance) { + processObjectFlight(t, x, y); + } else { + endObjectFlight(t, x, y, 8); + } + } +} + void LoLEngine::assignItemToBlock(uint16 *assignedBlockObjects, int id) { while (*assignedBlockObjects & 0x8000) { ItemInPlay *tmp = findObject(*assignedBlockObjects); |